Second Trimester Guide: Weeks 13-27
Welcome to the "golden period" of pregnancy. Your energy returns, morning sickness fades, and you'll experience the magic of feeling your baby move for the first time.
Medical Disclaimer
This content is for informational purposes only and is not intended as medical advice. Every pregnancy is unique. Always consult your healthcare provider, OB-GYN, or midwife for personalized medical guidance. If you have concerns about your pregnancy, contact your healthcare provider immediately.
In This Guide
The second trimester, spanning weeks 13 through 27, is often considered the most comfortable phase of pregnancy. Many of the challenging first trimester symptoms subside, your energy levels increase, and your growing bump becomes visible without yet being uncomfortable.
This is an exciting time as your baby grows rapidly, you feel those first precious kicks, and you can start planning for your little one's arrival. Let's explore everything you need to know about these wonderful weeks.
The "Honeymoon" Period of Pregnancy
The second trimester is often called the "honeymoon period" because many women feel their best during these weeks. Here's what makes this trimester special:
⚡ Energy Returns
The overwhelming fatigue of the first trimester usually fades. Many women feel more energized and motivated to tackle projects.
🤢 Nausea Subsides
Morning sickness typically eases by week 14-16. You can finally enjoy eating again and may even develop a hearty appetite.
😊 Mood Stabilizes
Hormones level out somewhat, leading to more emotional stability. Many women feel more positive and excited about their pregnancy.
What to Expect Each Month
Month 4 (Weeks 13-16)
Morning sickness fades, energy increases, and your bump starts to show. Baby is developing fingerprints and can make facial expressions. This is when many people announce their pregnancy.
See week 16 details →Month 5 (Weeks 17-20)
You may feel baby's first movements (quickening). The anatomy scan happens around week 20, and you might learn baby's sex if you choose. Baby can hear sounds now.
See week 20 details →Month 6 (Weeks 21-24)
Baby's movements become stronger and more regular. You're visibly pregnant now. Baby's lungs are developing, and they're practicing breathing movements.
See week 24 details →Month 7 Start (Weeks 25-27)
Baby responds to your voice and light. Eyes can open and close. The third trimester is approaching, and baby is gaining weight rapidly. Time to start thinking about birth classes.
See week 27 details →Baby's Development Milestones
The second trimester is a time of remarkable growth. Your baby transforms from a tiny 3-inch fetus into a 14-inch baby who can kick, hiccup, and respond to your voice.
Physical Development
- •Week 14: Baby can squint, frown, and grimace
- •Week 16: Limbs are fully formed, movements increase
- •Week 18: Ears are in final position, can hear sounds
- •Week 20: Halfway point! Baby is about 10 inches long
- •Week 22: Eyebrows and hair are growing
- •Week 24: Baby has regular sleep-wake cycles
- •Week 26: Eyes open, responds to light
Sensory Development
- •Touch: Baby can feel when you press on your belly
- •Hearing: Recognizes your voice and may respond to music
- •Taste: Taste buds develop, can taste amniotic fluid
- •Sight: Can perceive light filtering through the belly
📏 Baby Size Comparisons
Lemon
Avocado
Mango
Ear of Corn
Cauliflower
Anatomy Scan and Tests
The 20-Week Anatomy Scan
The anatomy scan (also called the level 2 ultrasound or mid-pregnancy ultrasound) is one of the most detailed and exciting appointments of your pregnancy. Usually performed between weeks 18-22, this comprehensive exam takes about 45-60 minutes.
What It Examines:
- • Baby's brain, heart, spine, and kidneys
- • Facial features and limb development
- • Placenta location and amniotic fluid levels
- • Umbilical cord blood flow
- • Baby's size and growth rate
- • Sex determination (if you want to know)
How to Prepare:
- • Drink plenty of water beforehand
- • Wear comfortable, two-piece clothing
- • Decide if you want to know baby's sex
- • Bring your partner or support person
- • Ask about getting printed photos
Other Second Trimester Tests
Quad Screen (15-20 weeks)
A blood test that measures four substances to screen for neural tube defects and chromosomal conditions. Often combined with first trimester screening results.
Amniocentesis (15-20 weeks, if recommended)
A diagnostic test that analyzes amniotic fluid for genetic conditions. Usually recommended for higher-risk pregnancies or abnormal screening results.
Glucose Screening (24-28 weeks)
A test to check for gestational diabetes. You'll drink a sweet glucose solution and have your blood drawn an hour later to measure blood sugar levels.
Rh Antibody Test
If you're Rh negative, you'll be tested for Rh antibodies and may receive a RhoGAM shot around week 28 to prevent complications.
Feeling Baby Move
One of the most magical moments of pregnancy is feeling your baby move for the first time. These early movements, called "quickening," are unforgettable.
When to Expect Movement
- •First pregnancy: Usually between weeks 18-22
- •Subsequent pregnancies: Often as early as week 14-16
- •Placenta position matters: Anterior placenta may delay feeling movement
What Movement Feels Like
- •Early: Flutters, bubbles, or "butterflies"
- •Mid-trimester: Gentle kicks and rolls
- •Later: Strong kicks, hiccups, and stretching
Kick Counting
Starting around week 28, your provider may recommend "kick counts." Pick a time when baby is usually active and count movements. You should feel 10 movements within 2 hours. If you notice a significant decrease in movement, contact your healthcare provider.
Maternity Clothes Timing
Most women start needing maternity clothes during the second trimester, typically between weeks 14-20, though this varies based on body type and pregnancy number.
When to Start Shopping
- •Pants: Usually first - try belly bands as a transition
- •Bras: May need a new size by week 14-16
- •Tops: Can often wear regular tops longer
- •Dresses: Stretchy, flowy styles work well
Smart Shopping Tips
- •Buy basics first, then add special items
- •Consider borrowing from friends or buying secondhand
- •Invest in comfortable, supportive shoes
- •Don't forget nursing-friendly options for later
Exercise Recommendations
The second trimester is often the best time to exercise during pregnancy. You have more energy, morning sickness has passed, and your belly isn't too large yet. Regular exercise can help with mood, sleep, energy levels, and prepare your body for birth.
✅ Recommended Exercises
- • Walking (30 minutes most days)
- • Swimming and water aerobics
- • Prenatal yoga
- • Stationary cycling
- • Low-impact aerobics
- • Light strength training
- • Pelvic floor exercises (Kegels)
❌ Exercises to Avoid
- • Contact sports (soccer, basketball)
- • Activities with falling risk (skiing, horseback riding)
- • Hot yoga or exercising in heat
- • Scuba diving
- • Exercises lying flat on back (after week 16)
- • High-altitude activities
- • Heavy weightlifting
Exercise Guidelines
- • Aim for 150 minutes of moderate exercise per week
- • Stay hydrated and avoid overheating
- • Listen to your body and rest when needed
- • Talk to your provider before starting a new exercise routine
- • Stop if you feel pain, dizziness, or shortness of breath
Travel Considerations
The second trimester is generally the safest and most comfortable time to travel during pregnancy. Morning sickness has usually passed, your energy is up, and you're not yet too uncomfortable to move around.
Best Time to Travel
- •Ideal window: Weeks 14-28
- •Airlines: Most allow travel until 36 weeks (check policies)
- •Doctor's note: May be required for later travel
Travel Tips
- •Book aisle seats for bathroom access
- •Walk around every hour to prevent blood clots
- •Wear compression socks for long flights
- •Carry prenatal records and emergency contacts
- •Stay hydrated and pack healthy snacks
Destinations to Avoid
Avoid areas with Zika virus risk, high altitudes (above 8,000 feet) without acclimatization, regions with limited medical care, and countries requiring certain vaccinations that aren't safe during pregnancy. Always check travel advisories and consult your healthcare provider.
Nursery Planning
The second trimester is perfect for starting nursery preparations. You have energy, time before baby arrives, and can enjoy the creative process without the pressure of an imminent due date.
Essential Items to Research
- •Crib: Check safety standards and recalls
- •Mattress: Firm, tight-fitting mattress
- •Car seat: Research and install before baby comes
- •Changing table or pad: Consider your space
- •Dresser/storage: For clothes and supplies
Nursery Timeline
- •Weeks 16-20: Start planning and budgeting
- •Weeks 20-24: Create registry, order furniture
- •Weeks 24-28: Paint and assemble furniture
- •Weeks 28-32: Add finishing touches, wash clothes
- •Week 36: Everything ready for baby!
💡 Safety Tips
- • Use low-VOC or zero-VOC paint if painting
- • Let someone else do heavy lifting and painting
- • Ensure proper ventilation during any renovations
- • Anchor all furniture to walls to prevent tipping
- • Keep crib away from windows, cords, and blinds
Explore Second Trimester Week by Week
Disclaimer
This content is for informational purposes only. Pregnancy information is general guidance and may not apply to your specific situation. Consult a healthcare provider for personalized advice.